1 Syllable: S
2 Syllables: SU
choral, coastal, coral, cordial, corporal, dorsal, floral, focal, forceful, formal, global, laurel, local, mobile, modal, Mogul, moral, morsel, mortal, mournful, noble, normal, opal, oral, Oriel, oval, portal, postal, quarrel, quarrelled, quarrels, scornful, social, sorrel, total, vocal, Vogel, woeful
2 Syllables: US
3 Syllables: USU
abnormal, armorial, betrothal, corporeal, disposal, ennoble, ignoble, immobile, immoral, immortal, informal, memorial, pictorial, primordial, proposal, resourceful, unsocial
4 Syllables: UUSU
anecdotal, antisocial, dictatorial, editorial, equatorial, immemorial, sacerdotal, senatorial, territorial
5 Syllables: UUUSU
Found 70 words across 6 groupings. Skipped 16 excess words of a similar stem.